Intake-valve control.



J. W. NEAL.

INTAKE V-ALVE CONTROL.

APPLICATION mu) APR. 10. 1916.

Patented Mar. 27, 1917.

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J. W. NEAL.

I-NTAKE VALVE CONTROL.

APPLICAT lON FILED APR. I0, 1916.

1,220,530. Patented Mar. 27, 1917.

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UNITE TATE PATENT QFFKCE...

JOHN WILLIAM NEAL, 0F MUNBOE, LOUISIANA, ASSIGNOR OF ONE-HALF T0AUGUSTUS A. SWAYZE, OF MONROE, LOUISIANA.

INTAKE-VALVE CONTROL.

Application filed April 10, 1916.

To all whom it may concern:

Be it known that 1, JOHN WILLIAM NEAL, a citizen of the United States,residing at Monroe, in the parish of Ouachita and State of Louisiana,have invented certain new and useful Improvements in Intake-ValveControls; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention is a mechanism for controlling the amount of openingmovement of the intake valves of internal combustion engines, the objectbeing to providea simple and inexpensive mechanism of this class by theuse of which the amount of explosive mixture fed to the cylinder orcylinders may be accurately controlled, thus eflecting a great saving offuel since when light work is being done less of such fuel will be usedthan when the engine is on heavy duty.

With the foregoing general object in view, the invention resides incertain novel features of construction and in unique combinations ofparts to be hereinafter fully described and claimed, the descriptivematter being supplemented by the accompanying drawings which constitutea part of this application and in which: f

Figure 1 is a side elevation of an engine cylinder showing theapplication of the invention thereto;

Fig. 2 is a view similar to Fig. l but show-. ing parts in sectiontomore clearly illustrate the details of the invention;

Fig. 3, is a horizontal sectional view taken on the plane of the line 33of Fig; 1;

Fig. 4c is a vertical transverse section as viewed on the planeindicated by the line H of Fig. 1; and

Fig. 5 is a perspective view of the wedgeshaped insert to be describedand a portion of its operating rod.

In specifically describing the construction shown in the drawings abovebriefly described, similar characters will be placed on correspondingparts throughout the several views and reference will be herein made tothe numerous elements by their respective indices. To this end, thenumeral 1 desighates the crankcase of an internal combus-' tion engine,while 2 has reference to a cylinder rising therefrom, sald cylinderhavlng a valve casing 3 1n WlllCll mtake and ex- Speeification ofLetters Patent.

Patented Mar. 27, 191?.

Serial No. 90,191.

haust valves are mounted. The exhaust valve may be of any preferredconstruction and is therefore not illustrated, but for allowing properoperation of the details to be described, it is essential that theintake opened and thus guide said valve on its return movement.

A valve stem 7 depends from the valve 4 and is received in a socket 8 onthe upper end of a push rod 9 which is raised at predetermined intervalsby a cam 10 in the crank case 1, said stem being normally held inlowered position by a coiled spring 11 Whose upper end bears against thevalve casing 3, while its lower end rests on a collar 12 secured to thestem. The opposed sides of the socket 8 are formed with vertical slots13 through which a horizontally moving insert 1 1 may pass, either theupper or the lower edge of said insert being inclined at 15 whereby'toaccomplish the action of a wedge. In the present embodiment of theinvention, the upper edge of the insert let is inclined, and the lowerend of the stem 7 is suitably shaped for contact therewith, being heldin such contact by a spring 11.

By the construction and arrangement so far described, it will be obviousthat if the insert 14 be forced inwardly, the stem 7 will be raised toadvance the valve a any desired amount toward its opening position,whereupon when the usual amount of movement is imparted to the push rod9 by the cam 10, said rod will move the insert and the valve stem acorresponding amount and will thus open the valve 4 a greater distancethan when the insert is retracted to allow the spring 11 to cause thevalve to recede from its opening position. By thus varying the openingof the intake valve, the supply of explosive mixture fed into thecylinder may be accurately controlled and thus when light work is beingdone, a great saving of fuel may be accomplished. W hen heavy work is tobe performed by the engine, however, the valve may be caused to open tosuch an extent as to allow the admission of an abundant quantity ofmixture.

For the purpose of controlling the insert 14, any preferred means may beemployed, but a horizontally movable rod 16 is preferably employed, saidrod having a laterally extending pin 17 received in a vertical slot 18shown as'opening through the upper edge of the insert 14. By thisconnection, sliding of the rod 16 will advance or retract the insert asoccasion may demand, and will allow said insert to move vertically withthe socket 8 and cooperating parts.

Although in the drawings I have shown but one cylinder, and in thepreceding have described the same, it will be obvious that I theinvention could well be applied to any number and that one rod 16 may beused for operating all of the inserts simultaneously, said rod havingcontrolling means adjacent the drivers seat if the invention be appliedto an automobile engine, and obviously, any desired means may beemployed for locking said rod a ainst accidental shitting.

From the foregoing, taken in connection with the drawings, theconstruction, operation and numerous advantages of the invention will bereadily understood withoutrequiring a more extended explanation, but inconclusion I will state that although I have described and shown certainspecific details, numerous changes may be made within the scope of theinvention as claimed.

' I claim: V

1. The combination with the intake valve of an engine, and valveoperating means for moving said valve to open position at predeterminedintervals, said valve having idle movement between its normal andopening positions, of means for advancing said valve toward its openingposition and for imparting the thrust of the valve operating means tosaid valve.

2. The combination with the intake valve of an engine, and valveoperating means for moving said valve to open position at predeterminedintervals, said valve having idle movement between its normal andopening positions, of an insert for reception be tween the valve and itsoperating means to advance said valve toward its opening positionand toimpart the thrust of said valve operating means to said valve.

3. The combination with the intake valve of an engine, and valveoperating means for moving said valve to open position at predeterminedintervals, said valve having idle movement between its normal andopening positions, of a wedge-shaped insert for re-. ception between thevalve'and 1ts operatlng means to advance said valve any required amounttoward its opening position and to impart the thrust of said means tosaid valve.

1. The combination with the intake valve of an engine, and valveoperating means for moving said valve to open position at prede valveoperating 7 termined intervals, said valve having idle movement betweenits normal and opening positlons, of an lnsert for reception between thevalve and its operating means to advance said valve toward its openingposition and to impart the thrust of said valve operating positions, ofa wedge-shaped insert for reception between the valve and its operatingmeans to advance said valve any required amount toward 1ts opening postion and to impart the thrust of said valve operating means to saidvalve, said insert being movable transversely of the lme'of movement ofthe valve when advancing the latter, but

moving on said line of movement when shift- 7 ed by the valve operatingmeans, an insert control member movable transversely of said line ofmovement, and a sliding connection between said control member and theinsert for allowing the latter to move on the afore 7 said line.

6. The combination with the intake valve of an engine, and valveoperating means for moving said valve to openposition at predeterminedintervals, said valve having idle movement between its normal andopening positions, of a wedge shaped insert for reception between thevalve and its operating means to advance said valve any required amounttoward its-opening position and to impart the thrust of said valveoperating means to said valve,-said insert being movable transversely ofthe line of movement" of the valve when advancing the latter, but

moving on said line of movement when shifted by the valve operatingmeans, and an in sert control member movable transversely of said lineof movement and having a lateral projection, said insert havin'g'an aperture elongated longitudinally of said line of movement and 7 receiving.said projection loosely therein. V

7 The combination withthe intake valve of an engine, the stem of saidvalve, and a longitudinally shifting operating rod alined with saidstem, said valve having idle movement between its normal and openingpositions, of a wedge interposedj'between said operating rod and thevalve stem'for shifting the latter to. advance the'valvetoward itsopening position. 7 7

8. The combination w th the intake'valve of an engine, the stem ofsa1d'valve,-and a longitudinally shifting operating rod alined with saidstem, said valvehaving'idl'e move;

ment between its normal and opening posi= tions, of a socket carried bythe operating rod and receiving the free end of the stem slidablytherein, said socket having slots in opposed sides, and a wedge slidablethrough said slots and engaging said free end of the stem to shift thelatter for the purpose of advancing the valve toward its openingposition.

9. The combination with the intake valve of an engine, the stem of saidvalve, and a longitudinally shifting operating rocl alined with saidstem, said valve having idle move ment between its normal and openingpositions, of a socket carried by the operating rod and receiving thefree end of the valve stem slidably therein, said socket having slots inopposed sides, a wedge slidable in said slots and engaging said free endof the stem to shift the latter for the purpose of advancing the valvetoward its opening position, an operating rod shiftable transversely ofthe stem, and a sliding connection between said rod and the wedge forallowing the latter to move with the operating rod and the valve stem.

10. An internal combustion engine having a tubular guideway in which itsintake valve is slidably mounted for idle movement between its normaland opening positions, a stem for said valve parallel with the enginecylinder, an operating rod movable longitudinally and having a socketreceiving the free end of said stem, a cam for shifting said operatingrod to open the valve, a spring for closing said valve, a wedge slidablethrough the aforesaid socket and, contacting with said free end of thevalve stem, and an operating rod for said valve mounted formovement in adirection at right angles to the valve stem, this operating rod having alaterally extending pin and the wedge being formed with a transverseslot receiving said pin to permit said wedge to move with the valve stemand the operating rod of the latter.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JOHN WILLIAM NEAL. Witnesses:

Moses CURTIS FLEWELLEN, LUTHER V. TURNER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). C.

